{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T12:05:36Z","timestamp":1792670736333,"version":"4.5.0"},"reference-count":58,"publisher":"American Physical Society (APS)","issue":"7","license":[{"start":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T00:00:00Z","timestamp":1771286400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006601","name":"Ministero degli Affari Esteri e della Cooperazione Internazionale","doi-asserted-by":"publisher","award":["PGR12351"],"award-info":[{"award-number":["PGR12351"]}],"id":[{"id":"10.13039\/501100006601","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.aps.org"],"crossmark-restriction":true},"short-container-title":["Phys. Rev. B"],"accepted":{"date-parts":[[2026,1,29]]},"abstract":"<jats:p>\n                    We develop a symmetry-based framework to compute band-geometric quantities in multiband systems whose low-energy Hamiltonians realize arbitrary\n                    <a:math xmlns:a=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                      <a:mrow>\n                        <a:mtext>SU<\/a:mtext>\n                        <a:mo>(<\/a:mo>\n                        <a:mn>2<\/a:mn>\n                        <a:mo>)<\/a:mo>\n                      <\/a:mrow>\n                    <\/a:math>\n                    representations. Exploiting the existence of a quantization axis, we use the Wigner-Eckart theorem to identify the allowed matrix elements and obtain compact analytic expressions for the quantum geometric tensor, the orbital magnetic moment, and the associated orbital transport coefficients. The formalism applies to multifold fermions as well as to gapped\n                    <b:math xmlns:b=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                      <b:mrow>\n                        <b:mtext>SU<\/b:mtext>\n                        <b:mo>(<\/b:mo>\n                        <b:mn>2<\/b:mn>\n                        <b:mo>)<\/b:mo>\n                      <\/b:mrow>\n                    <\/b:math>\n                    models. Its versatility is illustrated through explicit calculations in representative\n                    <c:math xmlns:c=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                      <c:mrow>\n                        <c:mtext>SU<\/c:mtext>\n                        <c:mo>(<\/c:mo>\n                        <c:mn>3<\/c:mn>\n                        <c:mo>)<\/c:mo>\n                      <\/c:mrow>\n                    <\/c:math>\n                    and\n                    <d:math xmlns:d=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                      <d:mrow>\n                        <d:mtext>SU<\/d:mtext>\n                        <d:mo>(<\/d:mo>\n                        <d:mn>4<\/d:mn>\n                        <d:mo>)<\/d:mo>\n                      <\/d:mrow>\n                    <\/d:math>\n                    settings, where orbital Edelstein and orbital Hall responses emerge naturally from the antisymmetric components of the band geometry. These results establish a direct connection between the algebraic structure of the Hamiltonian and intrinsic orbitronic phenomena.\n                  <\/jats:p>","DOI":"10.1103\/hqsf-v45b","type":"journal-article","created":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T19:26:35Z","timestamp":1769714795000},"update-policy":"https:\/\/doi.org\/10.1103\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Quantum geometry and linear orbital response in arbitrary SU(2) representation"],"prefix":"10.1103","volume":"113","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2890-885X","authenticated-orcid":true,"given":"Rhonald Burgos","family":"Atencia","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0192m2k53","id-type":"ROR","asserted-by":"publisher"}],"name":"Universit\u00e0 di 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Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"Published by the American Physical Society. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright_statement","label":"Copyright statement","group":{"name":"copyright","label":"copyright"}},{"value":"2026","name":"copyright_year","label":"Copyright year","group":{"name":"copyright","label":"copyright"}},{"value":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","name":"creative_commons_license","label":"Creative Commons license","group":{"name":"licenses","label":"Licenses"}},{"value":"\u00a92026 The authors","name":"copyright_holder","label":"Copyright holder","group":{"name":"copyright","label":"copyright"}}],"article-number":"075422"}}